DD, you would probably be horrified by what passes for Tex Mex food in most of the world. I was in a supermarket yesterday and there was a big array of Mexican meal kits. These are basically a packet containing corn-based taco shells or flour tortillas or similar, along with a packet of sauce and some dry spice to add to some beef mince (I think you say chopped meat or ground beef instead of mince).
The weirdest place I've encountered a Mexican restaurant was in post-Communist Slovenia in 2001. It was one of a tiny handful of international style restaurants in the capital city. Their guacamole was awful, a watery green salsa that had never seen an avocado. Their "Mexican" beer was made in France and according to the label it contained tequila. I remember my New Yorker girlfriend at the time telling me that in Poland, where she lived previously, they called limes "capitalist lemons".
In parts of Sydney you can grow mangoes and bananas and the climate is almost subtropical. Where I live we have a weird microclimate so we get frosts in winter. That rules out a lot of tropical food crops. We also have awful soil that is basically rocks and sand, so growing stuff is difficult.
